RCI, Inc. - The Institute of Roofing, Waterproofing, and Building Envelope Professionals (formerly Roof Consultants Institute), is an international non-profit association of professional roof consultants, architects, and engineers who specialize in the specification and design of roof systems. From sprayed polyurethane foam to cedar shake, RCI, Inc. has a member-expert for most every type of roof system used in the world today.